This is a Windows 10 64bit driver for the Optiplex 3030 computer. The Optiplex 3030 came with an Intel 7260 WiFi card much like other systems from Dell. This was the last driver released and was released in Jul 2016. The same hardware can also be found in the Latitude, Precision, OptiPlex and Venue Pro models from Dell and this driver would work on all of them if they have a 64bit Windows 10 operating system.
Optiplex 3030 : Intel 7260 WiFi Driver
Download the Intel 7260 driver below which is in a zip file. Once you open the file you will note that there is another exe file inside. Click on this file and the system will either extract the file into the C:\ drive of your computer or it will simply install the driver for you. This driver is not Dell specific and you can download the driver even if it is not a Dell machine. This is an Intel driver and can be used on any computer with the Intel 7260 WiFi hard ware in it. Should it extract to the Dell directory then you will need to check the directory and click on the install file there which will then install the Intel 7260 WiFi driver for you.